Reproductive efficiency is an important contributor to dairy farm profitability. Unfortunately, the reproductive performance of dairy cattle has declined steadily over the last few decades, as evidenced by decreased estrous detection rates, decreased conception rates, and increased number of services per conception. In my research program I emphasize applied research that has a direct impact on reproductive efficiency and management of dairy cows. My research is in the area of applied cattle reproduction with an emphasis on fertility, and management.

The focus of my research is to develop a systematic breeding program for dairy cattle to increase fertility rates and improve reproductive and economic advantages of artificial insemination (AI) on dairy farms. Using exogenous reproductive hormones (gonadotropin-releasing hormone, prostaglandin F2a,, estradiol-17b, progesterone), we attempt to develop new systematic breeding program (or improve upon the existing breeding program) to provide an organized and efficient approach to administering artificial insemination and improving reproductive efficiency in cattle through increasing heat detection efficiency and enhancing conception rate.

Other areas of research include: • Examining the role of environment, management, and diseases on cattle reproduction • Interaction between nutrition and reproduction • Enhancing conception rate by reducing early embryonic loss In continuing our research efforts on reproductive efficiency and management, I extensively collaborate with University of Idaho dairy extension specialists, Dr. Joe Dalton and reproductive physiologist Dr. Tracy Davis. Our research program is based on applied research addressing the existing issues on farms and those that have direct implications on practical reproductive management.

Outreach Projects

Participation of UI students in Western Dairy Challenge student completion (10 students; Fresno, CA, March 2012).

Officiated at the annual State FFA Career Development State Contest June 2012.

Officiated at the annual State FFA/4-H dairy judging contest at Ag Days, October 201